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LTC1858IG#TRPBF

Description
IC A/D CONV 8CH 14BIT 28-SSOP
CategoryAnalog mixed-signal IC    converter   
File Size375KB,22 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC1858IG#TRPBF Overview

IC A/D CONV 8CH 14BIT 28-SSOP

LTC1858IG#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionSSOP, SSOP28,.3
Contacts28
Manufacturer packaging codeG
Reach Compliance Codecompliant
ECCN codeEAR99
Maximum analog input voltage10 V
Minimum analog input voltage-10 V
Maximum conversion time5 µs
Converter typeADC, PROPRIETARY METHOD
JESD-30 codeR-PDSO-G28
JESD-609 codee3
length10.2 mm
Maximum linear error (EL)0.0092%
Humidity sensitivity level1
Number of analog input channels8
Number of digits14
Number of functions1
Number of terminals28
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output bit codeOFFSET BINARY, 2\'S COMPLEMENT BINARY
Output formatSERIAL
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP28,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply5 V
Certification statusNot Qualified
Sampling rate0.1 MHz
Sample and hold/Track and holdSAMPLE
Maximum seat height2 mm
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width5.3 mm
LTC1857/LTC1858/LTC1859
8-Channel, 12-/14-/16-Bit,
100ksps SoftSpan A/D
Converters with Shutdown
FEATURES
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DESCRIPTION
The
LTC
®
1857/LTC1858/LTC1859
are 8-channel, low
power, 12-/14-/16-bit, 100ksps, analog-to-digital convert-
ers (ADCs). These SoftSpan™ ADCs can be software-
programmed for 0V to 5V, 0V to 10V, ±5V or ±10V input
spans and operate from a single 5V supply. The 8-channel
multiplexer can be programmed for single-ended inputs
or pairs of differential inputs or combinations of both. In
addition, all channels are fault protected to ±25V. A fault
condition on any channel will not affect the conversion
result of the selected channel.
An onboard high performance sample-and-hold and pre-
cision reference minimize external components. The low
40mW power dissipation is made even more attractive with
two user selectable power shutdown modes. DC specifica-
tions include ±3LSB INL for the LTC1859, ±1.5LSB INL
for the LTC1858 and ±1LSB for the LTC1857.
The internal clock is trimmed for 5µs maximum conversion
time and the sampling rate is guaranteed at 100ksps. A
separate convert start input and data ready signal (BUSY)
ease connections to FIFOs, DSPs and microprocessors.
L,
LT, LTC and LTM are registered trademarks of Linear Technology Corporation. SoftSpan is
a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
n
n
n
n
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n
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n
Sample Rate: 100ksps
8-Channel Multiplexer with ±25V Protection
Single 5V Supply
Software-Programmable Input Ranges:
n
0V to 5V, 0V to 10V, ±5V or ±10V
n
Single-Ended or Differential
±3LSB INL for the LTC1859, ±1.5LSB INL for the
LTC1858, ±1LSB INL for the LTC1857
Power Dissipation: 40mW (Typ)
SPI/MICROWIRE™ Compatible Serial I/O
Power Shutdown: Nap and Sleep
Signal-to-Noise Ratio: 87dB (Typ) for the LTC1859
Operates with Internal or External Reference
Internal Synchronized Clock
28-Pin SSOP Package
APPLICATIONS
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Industrial Process Control
Multiplexed Data Acquisition Systems
High Speed Data Acquisition for PCs
Digital Signal Processing
TYPICAL APPLICATION
100kHz, 12-Bit/14-Bit/16-Bit Sampling ADC
COM
CONVST
CH0 LTC1857/
RD
CH1 LTC1858/ SCK
CH2 LTC1859 SDI
CH3
DGND
CH4
SDO
CH5
BUSY
CH6
OV
DD
DV
DD
CH7
AV
DD
MUXOUT
+
MUXOUT
AGND3
ADC
+
AGND2
ADC
REFCOMP
AGND1
V
REF
2.0
1.5
µP
CONTROL
LINES
INL (LSB)
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–32768
–16384
0
CODE
16384
32767
1859 TA02
LTC1859 Typical INL Curve
SOFTWARE-PROGRAMMABLE
SINGLE-ENDED OR
DIFFERENTIAL INPUTS
(0V TO 5V, 0V TO 10V,
±5V OR ±10V)
10µF
10µF
3V TO 5V
5V
5V
10µF
2.5V
1µF
10µF
185789fb
For more information
www.linear.com/LTC1857
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